Google takes up about 25% of all the Internet traffic in the world and there is a great chance you are using one of its services on a daily basis. Let's see if you are familiar with some of the Google's facts.
Modern scientific big bang theory assumes that everything we see today from the Earth to the cosmic horizon, started out as a very small, hot and dense mixture of matter and energy.
If you want you can turn any Microsoft PowerPoint presentation into a video so you can play the presentation on a computer that doesn't have Microsoft Office installed.